[INFO] crate chess_clock 0.1.1 is already in cache
[INFO] extracting crate chess_clock 0.1.1 into work/ex/pr-58948/sources/master#0f88167f89fffe321590c5148f21b7d51d44388d/reg/chess_clock/0.1.1
[INFO] extracting crate chess_clock 0.1.1 into work/ex/pr-58948/sources/try#a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b/reg/chess_clock/0.1.1
[INFO] validating manifest of chess_clock-0.1.1 on toolchain master#0f88167f89fffe321590c5148f21b7d51d44388d
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+0f88167f89fffe321590c5148f21b7d51d44388d-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of chess_clock-0.1.1 on toolchain try#a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing chess_clock-0.1.1
[INFO] finished frobbing chess_clock-0.1.1
[INFO] frobbed toml for chess_clock-0.1.1 written to work/ex/pr-58948/sources/master#0f88167f89fffe321590c5148f21b7d51d44388d/reg/chess_clock/0.1.1/Cargo.toml
[INFO] started frobbing chess_clock-0.1.1
[INFO] finished frobbing chess_clock-0.1.1
[INFO] frobbed toml for chess_clock-0.1.1 written to work/ex/pr-58948/sources/try#a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b/reg/chess_clock/0.1.1/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+0f88167f89fffe321590c5148f21b7d51d44388d-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+0f88167f89fffe321590c5148f21b7d51d44388d-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking chess_clock-0.1.1 against try#a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b for pr-58948
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-58948/worker-1/try#a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-58948/sources/try#a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b/reg/chess_clock/0.1.1:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] fb842d8c960dd749e8bfe2253270d0f4b89eb69559e1b42d1171ad31b4841eca
[INFO] running `"docker" "start" "-a" "fb842d8c960dd749e8bfe2253270d0f4b89eb69559e1b42d1171ad31b4841eca"`
[INFO] [stderr]     Checking chess_clock v0.1.1 (/opt/crater/workdir)
[INFO] [stderr] warning: the feature `duration_as_u128` has been stable since 1.33.0 and no longer requires an attribute to enable
[INFO] [stderr]   --> src/lib.rs:65:12
[INFO] [stderr]    |
[INFO] [stderr] 65 | #![feature(duration_as_u128)]
[INFO] [stderr]    |            ^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(stable_features)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::thread::sleep`
[INFO] [stderr]   --> src/lib.rs:79:13
[INFO] [stderr]    |
[INFO] [stderr] 79 |         use std::thread::sleep;
[INFO] [stderr]    |             ^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `Either`, `FutureResult`, `self`
[INFO] [stderr]   --> src/lib.rs:83:22
[INFO] [stderr]    |
[INFO] [stderr] 83 |             future::{self, err, ok, Either, FutureResult},
[INFO] [stderr]    |                      ^^^^           ^^^^^^  ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/lib.rs:94:13
[INFO] [stderr]    |
[INFO] [stderr] 94 |         let mut clock_master = ChessClock::new(
[INFO] [stderr]    |             ----^^^^^^^^^^^^
[INFO] [stderr]    |             |
[INFO] [stderr]    |             help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_mut)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: the feature `duration_as_u128` has been stable since 1.33.0 and no longer requires an attribute to enable
[INFO] [stderr]   --> src/lib.rs:65:12
[INFO] [stderr]    |
[INFO] [stderr] 65 | #![feature(duration_as_u128)]
[INFO] [stderr]    |            ^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(stable_features)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.33s
[INFO] running `"docker" "inspect" "fb842d8c960dd749e8bfe2253270d0f4b89eb69559e1b42d1171ad31b4841eca"`
[INFO] running `"docker" "rm" "-f" "fb842d8c960dd749e8bfe2253270d0f4b89eb69559e1b42d1171ad31b4841eca"`
[INFO] [stdout] fb842d8c960dd749e8bfe2253270d0f4b89eb69559e1b42d1171ad31b4841eca